Sar felix josz



UNITED STATES PATENT OFFICE.

CESAR FELIX JOSZ, OF BRUSSELS, BELGIUM.

METHOD OF ORNAMENTING PLATES.

SPECIFICATION forming part of Letters Patent No. 439,160, dated October 28,1890.

Application filed September 25, 1889. Serial No. 325,065. (No specimens.) Patented in England July 15, 1889.1Io. 11,344; in Belgium January 25,1890 No. 89,302; in Canada. February 4, 1890,1Io. 33,568, and in Italy March 7,1890, LIII, 37.

To all whom it may concern:

Be it known that I, CESAR FELIX J osz, a citizen of France, residing at No. 92 Boulevard Leopold II, Brussels, in the Kingdom of Belgium, have invented a new and useful Improvement in the Manufacture of Ornamental Plates of Metal or other Malleable Sheets, (for which-I have received Letters Patent in. England, dated July 15, 1889, No. 11,344; in Belgium, dated January 25, 1890, No. 89,302; in Canada, dated February 4, 1890, No. 33,568, and in Italy, dated March 7, 1890, Volume L111, 37,) of which the following is a specification.

My invention relates to means of producing ornamental plates of metal or other malleable sheets-such as celluloid,'papier-mach, or the likeby a process of grounding, printing, and, if desired, embossing, which I carry out as I will now describe. In the first place, in order to vary the surface of the plate and render it suitable for receiving printed impressions, I render parts of it grounded or frosted While other parts of it remain smooth and polished in the following manner: I draw the pattern of the frosted parts on a lithographic stone, which I ink with a varnish ink of an adhesive character. On this Isprinkle hard powder-such as sand, pulverized glass, emery, or the likeof various degrees of fineness, according as I wish the frosting or grounding to be more or less fine. Removing from the stone all the powder except that which adheres to the inked parts of the design I press the plate on the stone, and thus I obtain the frosting or grounding efiect' desired. Afterward I print by ordinary printing any desired design on the plate, which is then varnished and dried in a stove.

When itis desired to emboss the plate, I prepare a die and matrix in the following manner: I draw on alithographic stone the design of the parts which are to be in relief and I etch out these parts with acid to the desired depth. I then take an impression of the etched stone on somewhat soft material-such as lead, papier-mach, or the like-and having taken this impression, I trim by hand the edges and bodies of the relief parts of the impression, taking care to give the edges a little slope.

Having thus prepared a die I glue over the etched stone a sheet of copper foil. and by means of the die I press this sheet, causing it to enter the hollows of the etched stone, but so as to form the counterpart form of the trimmed die. I then by pressing the ornamented plates between the die and matrix thus prepared give them the desired embossing.

Having thus described the nature of this invention and the best means I know of carrying the same into practical efiect, I claim 1. The herein-described method of ornamenting plates, consisting in drawing a pattern on stone, inking the same with varnish ink, sprinkling sand, emery, ground glass, or the like on said stone, then removing said sand, emery, or glass, except what adheres to the inked parts, and then pressing the plate to be ornamented on the stone, substantially as set forth.

2. The herein-described method of ornamenting plates, consisting in drawing on stone the parts to be in relief, etching out these parts with acid, taking an impression of the etched stone on soft material, then trimming the edges and bodies of the relief parts, then securing over the etched stone a sheet of copper-foil and by means of the die pressing it into the hollows of the said stone, and then finally pressing the ornamented plate between the die and the matrix thus formed, substantially as set forth.

3. The herein-described method of cm amenting plates, consisting in drawing a patink, sprinkling sand, emery, ground glass, or the like on said stone, then removing said sand, emery, or glass, except what adheres to the inked parts, and then pressing the plate to be ornamented on the stone, then drawing on stone the parts to be in relief, etching out these parts with acid, taking an impression of the etched stone on soft material, then trimming the edges and bodies of the relief parts, then securing over the etched stone a sheet of copper-foil and by means of the die pressing it into the hollows of the said stone, and then finally pressing the ornamented plate between the die and the matrix thus formed, substantially as set forth.

CESAR FELIX JOSZ. Witnesses:

OLIVER IMRAY, Patent Agent, 28 Southampton Buildings,

London, W C.

J NO. P. M. MILLARD, Clip 10,628 Southampton Buildings, London,

5 tern on stone, inking the same with varnish r 

